A video shot outside a Myrtle Beach hotel just before four people were shot over Memorial Day weekend may show the gunman, according to investigators.

Sandy Geddis Barnwell, 22, Devonte Herman Dantzler, 21, and Jamie Alexander Williams, 28, all of the Summerville area, were shot to death the night of May 24. Police have identified no suspects but believe somebody knows something and is not talking, Myrtle Beach Police Detective Wil Kitelinger said Wednesday at a news conference at Summerville Police headquarters.

"The Myrtle Beach Police Department has interviewed dozens of people, we followed up on dozens of leads, and some of that information led us to the fact the perhaps there were people in this local community that had additional information but were, for whatever reason, either unable or unwilling to come forward," he said.

The meeting was also held in Summerville so relatives of the victims could speak.

"I want people to see it isn't just law enforcement looking for answers, it's family looking for answers," Kitelinger said.

All three families were represented.

"Anybody with any information, please come forward," said Terri Dantzler, Devonte's grandmother. "Right now we're having a hard time dealing with it. You might just have something small to give us, but something, but just something."

Melody Geddis McFadden, Sandy Geddis Barnwell's aunt, also appealed for help.

"We need you to help us." she said. "We need information as to what happened here. ... We look in everybody's faces, and we wonder who knows who murdered our loved ones. We need to know. We need justice."

Pastor Thomas Dixon of The Coalition also appealed for help.

"There is a misunderstanding about this term 'snitching,'" he said.

"If an individual was not part of the crime and they report what they saw, they are only a witness and they are not a snitch."

Police were called to the Bermuda Sands Resort around 11 p.m. May 24 to handle a brawl. They found that 24-year-old Keith Williams had been wounded. While they were handling that situation, first responders reported hearing more shots fired on the balcony.

Barnwell, Dantzler and Williams were killed.

Investigators initially said they suspected the gunfire may have been gang related. No evidence has been found to support that theory, Kitelinger said Wednesday.

Crime Stoppers is offering a $1,000 reward for information leading to an arrest in the case, Charleston Police Cpl. Fred Bowie said at the meeting. Tips can be left for Crime Stoppers at 554-1111.

Anyone with information can also call Kitelinger at 843-918-1905.

Reach Dave Munday at 937-5553.